bpo-39273: Expose BUTTON5_* constants in the curses module if available (GH-17996)
diff --git a/Modules/_cursesmodule.c b/Modules/_cursesmodule.c
index 7175c72..7ab68c7 100644
--- a/Modules/_cursesmodule.c
+++ b/Modules/_cursesmodule.c
@@ -4870,6 +4870,14 @@ PyInit__curses(void)
SetDictInt("BUTTON4_DOUBLE_CLICKED", BUTTON4_DOUBLE_CLICKED);
SetDictInt("BUTTON4_TRIPLE_CLICKED", BUTTON4_TRIPLE_CLICKED);
+#if NCURSES_MOUSE_VERSION > 1
+ SetDictInt("BUTTON5_PRESSED", BUTTON5_PRESSED);
+ SetDictInt("BUTTON5_RELEASED", BUTTON5_RELEASED);
+ SetDictInt("BUTTON5_CLICKED", BUTTON5_CLICKED);
+ SetDictInt("BUTTON5_DOUBLE_CLICKED", BUTTON5_DOUBLE_CLICKED);
+ SetDictInt("BUTTON5_TRIPLE_CLICKED", BUTTON5_TRIPLE_CLICKED);
+#endif
+
SetDictInt("BUTTON_SHIFT", BUTTON_SHIFT);
SetDictInt("BUTTON_CTRL", BUTTON_CTRL);
SetDictInt("BUTTON_ALT", BUTTON_ALT);